unsolved problem造句
Thisisanunsolvedproblem.Inheritancetheoryofontologiesisaveryimportantunsolvedproblem.However,themostprofoundunsolvedprobleminbiologyistheoriginoflifeitself.Intheendtheunsolvedproblemandgoing-ondirecti...
相關unsolved的文學知識
unsolved造句
Ruralpovertyandchronicallydistressedregionscontinuetopresentpolicymakerswithunsolvedproblems."Thisisoneoftheunsolvedmysteriesoflong-distanceflights,"Klaassensaid.Hisresortburneddownin1994-anunsolved...